The Ring & Bullet

This is small arcade game with simply graphics, where you need protect the ring as a long as possible from enemys by bullet, that will be rotation around ring automaticaly. If you let every enemy into the ring, then the game over.
Managment consists of two buttons - Left mouse button: for shots and restart the game after game over, and Escape for pause.
Points accumulate of destroying enemy. Quantity of accumulated points depends on scale of enemy (than smaller, than more points enemy give) and distance, from then it was destroyed.
For each 5 points quantity of enemy, they difference in scale, they speed and points from they increase.
That is all what can tall about the game.
Good luck!